| AIRCRAFT TIRES AND AIR PRESSURE
THE WHY'S AND HOW'S
A SENSE OF URGENCY
No other tires in the world are required to carry the heavy loads and high speeds as that of an aircraft tire. Proper air pressure
maintenance is a must for an Airline to achieve optimum performance of its tires. This document will discuss the why's and how's
in layman's language of an often underrated subject.
A CHANGING WORLD
Airlines today face many unique factors that have impacted the maintenance of aircraft tires. Some of the major factors include:
1. Aircraft manufactures are extremely weight conscious; therefore, in many instances tires at best are marginal for load/speed and
2. Schedule demands often require high speed exits off the first ramp.
3. Due to limited available space at gates, locked wheel pivots are the norm rather than the exception.
4. Scheduling of aircraft at times leaves aircraft at “out station" airports where tire maintenance is difficult to perform.
5. Intense scheduling of aircraft during daily operations prevents the desired "cool-down" period of landing gear components.
6. Education of airline personnel by manufacturers and suppliers must be intensified to the level necessary to insure that proper
maintenance is being performed as times and conditions change.
LOW AIR PRESSURE YIELDS
|WEAR PATTERNS RELATIONSHIP TO AIR PRESSURE
Excessive wear may be seen at both shoulders of the tire. This normally occurs as a result of under inflation of the tire.
Excessive wear may be seen at the center of the tire. This normally occurs as a result of over pressurization of the tire.
The perfect worn tire!
Proper Air Pressure practices will not only yield less opportunities for tire failure; but will
enhance tire life, landing performance and schedule reliability; saving an airline both time
and money! It's worth the extra care!
This document was prepared by James L. and William E. (Bill) Wilkerson of the Wilkerson Company; Inc. of Crewe, Va.
ABOUT THE WILKERSON COMPANY
Wilkerson Company, Inc. is one of four licensed high speed aircraft tire retreaders in the United States. One hundred
thousand aircraft tires will be shipped out of Crewe, Va in 2017; including 60,000 retreads and 40,000 new Goodyear
and Dunlop aircraft tires. According to Independent Market Analysis, WCO services 85% of the Regional Commuter
Airlines in the United States and Canada. WCO also services more than 90 countries and territories in the international
market. FAA statistics indicate that aircraft using WCO retreads will take-off and land 18,000,000 times a year. WCO
grew up with the very first Regional Airlines and Flight Schools in the 1960's; therefore, our experience in the industry can
work for you.
Credits and Reference Materials
"THE COMPREHENSIVE GUIDE TO AIRCRAFT TIRE CARE AND MAINTENANCE" published by The Goodyear Tire and
"GENERAL SERVICING INSTRUCTIONS AIRCRAFT TYRES AND TUBES" published by Dunlop Limited Aircraft Tyres
To Contact the authors you may use any one of the following methods:
Mail: Wilkerson Company, Inc. P. O. Box 438 Crewe, Va. 23930